<template>
  <div>
    <!-- 2. 图表在这里生成 -->
    <div id="main"></div>
  </div>
</template>
<script>
// 1. 引入原生的echarts
import echarts from "echarts";
export default {
  data() {
    return {
      option: {
        title: {
          text: "ECharts 入门示例",
        },
        tooltip: {},
        xAxis: {
          data: ["衬衫", "羊毛衫", "雪纺衫", "裤子", "高跟鞋", "袜子"],
        },
        yAxis: {},
        series: [
          {
            name: "销量",
            type: "bar",
            data: [5, 20, 36, 10, 10, 20],
          },
        ],
      },
    };
  },
  created() {
    // 模拟后台返回数据
    this.option.series[0].data = [15, 240, 356, 100, 140, 250];
  },
  mounted() {
    // 3. 初始化一个echarts
    var myChart = echarts.init(document.getElementById("main"));
    // 4. 设置数据
    myChart.setOption(this.option);
  },
};
</script>
<style>
#main {
  width: 500px;
  height: 500px;
}
</style>